The calculated distance (air line) between Suez and Kafr ad Dawwār is approximately 164 miles respectively 263 kilometers.
By car or train, the actual journey to Kafr ad Dawwār is certainly longer, as only the direct route (as the crow flies) between Suez and Kafr ad Dawwār has been calculated here.
Air line (approximately)
263 kilometers
142 nautical miles